Pirsig, R. M., Pirsig, W. K., & Lindberg, D. (2022). On quality: An inquiry into excellence : unpublished and selected writings (First edition.). Mariner Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPirsig, Robert M., Wendy K. Pirsig, और David Lindberg. On Quality: An Inquiry into Excellence : Unpublished and Selected Writings. First edition. Boston: Mariner Books, 2022.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPirsig, Robert M., et al. On Quality: An Inquiry into Excellence : Unpublished and Selected Writings. First edition. Mariner Books, 2022.
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